SCIUEUS. 271 



and the shoulder and humeral region greyish- white, due to an intermixture of black 

 and white hairs, the latter being by far the most numerous. A broad yellowish- 

 white line from the axilla runs along the side, and over the outside of the thigh to 

 the heel. All the upper parts, from the tip of the muzzle, through the upper 

 two-thirds of the ear and along the back and round the liips and back of hind legs 

 to the tarsus, and the tail, are black, the tip of the latter tending to red. There is 

 a dusky spot on the cliin : all the rest of the animal is rich maroon-chestnut. The 

 whiskers are black. Length of body 10*50; tail, without hair, lO'SO inches. 



In the adolescent, the sides of the face are much greyer than in the adult, and 

 approximate in colour to the cheeks of S. rafflesii, V. & H., from Sumatra, but are 

 much lighter, and, like it, the moustachial area, and the spot where the cheek- 

 bristles originate, are much purer white ; the sides of the neck and the shoulders 

 also are much more grey, and the shoulder is sKghtly washed with rufous. The 

 lower portion of the tail is black above and brown below, the remainder being 

 rather reddish-brown, paling towards its extremity. In a specimen referable to 

 this race the red is much more intense on the fore limb and lower front part of the 

 shoulder than in other individuals, and in these respects it approaches to S. prevostii 

 var. bangkana, but it has only the faintest trace of red on the front of the shoulder, 

 the shoulder generally being grey, while it is reddish in S. hangkanus. 



A young squuTel stated to have come from China, accurately agreeing with the 

 description and figure of S. rafflesii, Vigors and Horsfield, was referred by Dr. Gray 

 to a new species, S. ^''ufogularis, but it also corresponds to the figure and description 

 of S. redimitus, Boon Mesch, except that the greyish extends on to the side of the 

 face and neck, whereas these areas in S. redimitus are the same as in the under parts. 

 It also agrees, however, with the measurements given by Boon Mesch of his sup- 

 posed species, and, like it, the moustachial region and area around the cheek-bristles 

 are white. In its otherwise grey cheeks and sides of the neck it resembles the 

 squirrel referred by Schlegel to S. prevostii var. hangkana. The fore legs are red, 

 tending to become white on the upper part of the shoulder. There is a white line 

 from the shoulder to the groin; and the outside of the thigh and the lower half of 

 the leg are wliite. The tail is brownish-black tending to reddish-brown at the tip. 



The Sumatran and Banka race. — The Sumatran race S. rafflesii is distin- 

 guished from the race of the mainland by a large white spot on the side of the 

 muzzle, by its greyish or brownish cheeks and side of the neck, and by its red 

 fore limb and shoulder. It closely approaches the other insular form from Borneo. 



Prom the muzzle to the root of the tail along the upper parts is wholly black, 

 and the liinder border of the thighs is of the same colour. The sides of the muzzle, 

 the chin, the region of the cheek-bristles, a line along the side from the shoulder, 

 and the outside of the thigh, are white. The three first-mentioned areas are obscurely 

 greyish when the sides of the face and neck are grey, wliich they appear to be in 

 the young animal. The region behind the ear has also generally a greyish tint. 

 The side of the face and below the ear, in the adult, are greyish-brown. The throat, 

 the sides of the lower jaw, the sides of the neck, the shoulder, the whole of the 



